Live Link VCAM - Intermittent Disconnected and Jittery while still

Hi all.

Can I know if anyone is also facing a situation where Live Link VCAM is intermittently disconnecting. The log keeps saying the connection was shutdown.
I am not sure what is causing this.

Additionally, while my iPhone is still, the screen keeps jittery moving instead of remaining completely still anyone knows why or can solve this?

TIA~!